Main purpose is to walk through a data tree - first three elements must be used as links to the same structure.
It works fine until I needed to import the structure from file. After loading all links pointed to Undefined.
When it is loaded from cheattable, all seems OK.

Second bug - option "Expanding this node will change the address" not saving its value to xml.
Also, I think there should be some fix or feature like "Do not change the address if node points to 0 or FFFFFFFF".
Or at least make an option "move back to previous".